#!/bin/sh
set -e

echo -n "TEST symlink handling... "

# Create test directory with symlinks on the host (these will be visible in the sandbox)
TEST_DIR=".agentfs/symlink-test-$$"
rm -rf "$TEST_DIR"
mkdir -p "$TEST_DIR/target_dir"
echo "test content" > "$TEST_DIR/target_dir/file.txt"
ln -s target_dir "$TEST_DIR/link_to_dir"
ln -s target_dir/file.txt "$TEST_DIR/link_to_file"

cleanup() {
    rm -rf "$TEST_DIR"
}
trap cleanup EXIT

# Test 1 & 2: Verify symlinks are reported correctly (not as directories)
output=$(cargo run -- run /bin/bash -c "ls -la $TEST_DIR/" 2>&1)

# The output should contain 'lrwxrwxrwx' for symlinks (not 'drwxr-xr-x' for directory)
if ! echo "$output" | grep -qE "^lrwx.* link_to_dir"; then
    echo "FAILED: symlink to directory not reported as symlink"
    echo "$output"
    exit 1
fi

if ! echo "$output" | grep -qE "^lrwx.* link_to_file"; then
    echo "FAILED: symlink to file not reported as symlink"
    echo "$output"
    exit 1
fi

# Test 3: Verify rm can remove symlink to directory (this was the original bug)
# Previously this would fail with "Is a directory" because symlinks were misidentified
output=$(cargo run -- run /bin/bash -c "rm $TEST_DIR/link_to_dir && echo 'symlink removed successfully'" 2>&1)

if ! echo "$output" | grep -q "symlink removed successfully"; then
    echo "FAILED: could not remove symlink to directory"
    echo "$output"
    exit 1
fi

# Test 4: Verify the target directory still exists on host after removing symlink
# (The removal was in the delta layer, host should still have it)
if ! cat "$TEST_DIR/target_dir/file.txt" | grep -q "test content"; then
    echo "FAILED: target directory should still exist after removing symlink"
    exit 1
fi

# Test 5: Create a symlink inside the sandbox (tests FUSE symlink creation)
output=$(cargo run -- run /bin/bash -c "ln -s target_dir/file.txt $TEST_DIR/new_symlink && readlink $TEST_DIR/new_symlink" 2>&1)

if ! echo "$output" | grep -q "target_dir/file.txt"; then
    echo "FAILED: could not create symlink in sandbox"
    echo "$output"
    exit 1
fi

# Test 6: Create and follow symlink to read file content
output=$(cargo run -- run /bin/bash -c "ln -s target_dir $TEST_DIR/new_dir_link && cat $TEST_DIR/new_dir_link/file.txt" 2>&1)

if ! echo "$output" | grep -q "test content"; then
    echo "FAILED: could not read through newly created symlink"
    echo "$output"
    exit 1
fi

# Test 7: Verify symlinks created in sandbox are visible via ls -l
output=$(cargo run -- run /bin/bash -c "ln -s foo $TEST_DIR/test_link && ls -la $TEST_DIR/test_link" 2>&1)

if ! echo "$output" | grep -qE "^lrwx.*test_link -> foo"; then
    echo "FAILED: newly created symlink not shown correctly in ls"
    echo "$output"
    exit 1
fi

echo "OK"